Mechanical thread pasting apparatus



July 10, 1923.

' F. A. MARTENS MECHANICAL THREAD PASTING APPARATUS 'Filed Sept, 1s, 1920 a Sheet-Sheet 1 F. A. MARTENS MECHANICAL THREAD PASTING APPARATUS July 10, 1923.

Filed Sept. 18 1920 3 Sheets-Sheet 2 July 10, 1923. 1,461,281

F. A. MARTENS MECHANICAL THREAD PASTING APPARATUS Filed Sept. 18 1920 3 Shaets$heet 5 Z ALM Patented July 10, 192

waite FRANTZ ADOLF ivmn'rnns, or cornlvnae un, DENMARK, assrsnoa'romanirnnsy PATENT. wISTING-IN MACHINE 00., ran. on COPENHAGEN, ,DENMARK'ACO'RJ PORATION F DENMARK.

MEGHANICAL THREAD PAS'IING APPARATUS.

- Application filed September 18, 1926. Serial No. 411,280.

To all whom it may concern.

Be it known that'FnANrz Anon}; Mnnrnns,

subject of the king of Norway, residing at Thorvaldsensvej 20, Copenhagen, Denmark, has invented new .and usefullmproved Me'- chanical Thread-Pasting Apparatus, of which the following is a specification.

1 Joining the. threads of old and new warps for=textile fabricsmay be performed either by hand, the threads being knotted together two; and two or far more efiicientlyby mechanical means, the thread en'ds being-approached-to one another'and interconnected. for instance pasted together, by ineansof suitablefapparatus.

,Theheretofore known pasting devices of the kind here. referred to are subject to the drawback, however, that the adhesive (the glue) cannot easily be dried and, for that reason, quite complicated arrangements have to be made in order toisolate from each other, by means of paperstrips or the like, the individual pairs of threadsuntilthe gl'ue hasbecome dryz. Later on these paper strips and the like have to beremoved again;

According to the present invention, this drawback is remedied by the pastingto gather of the threads in. pairs being effected practically instantaneously, -the adhesive being supplied,'to the place of contact between the two threads to be pasted together, in

quite small quantities (dropwise i for instance) and. dried in the course of a very short time, by passing .the threads over a drying device which dries the paste'by a simultaneous action of heat and drying air.

These 'various' operations .are performed by-m'eans of a combined pasting'and drying threads to be pastedtogether,

device drivenby' some motive power, and, thereby, causing;v 7

1. Only a drop of adhesive to be applied to the place of' contact between thestwo 2. This pair of threads immediately thereafter to be passedon to a grippingdevice which then, :0

3." Moves the thread on 'to the .drying-de vice, where,

4. Simultaneously the compressed air is admitted, Whereafter,

5. The coupled thread is moved cine-way from the drying'device. I p j The warps GX'llGIldCIOSSWlSG, in well known the line -II- in Fig. 6, and

manner between cross-bars and the pasting and drying device and is moved in .adirection across the warps, from t-h ejtreatedxtowards the untreated portion thereof. The necessary-motions of the pasting and drying apparatus across the warps may be effected automatically by action of a suitable motive power. The separation (isolation), fromthe remaining still untreated portion of the warp, of the individualpairs of threads to be pasted together may be efiected, in the manner known from the British Patentspa cification No. 2474:9/1912, by means ofa disc, the so-called hear-t, whichdis moved rapidly back and forthbetween the cross-beamsin a. direction parallel to the warp threads. It will be suitable to let this motion of the disc actuate the pasting and drying devices in such a manner that said disc. while moving towards these devices, "strikes special projecting members (levers, arms orthe like) on said devices, by which means the latter partly Wlll' perform the above mentioned op" -Figs., 3 and i show in outlinethe threads stretched between the cross-bars,-the heart (in central position) and the arrangement of the pasting and dryingappar'atus in side elevation and in top view,;resp'ectively,

Figs. 5 and 6 show the pasting and drying device in": side elevation and plan-respectively, 3

Fig. 7 is a cross-section of the sam along Fig. 8 is a detail vation. 1 Joining the threads of old and new-warps for textile fabrics by mechanical-means. is

of the same in side elemachine, and pasting together the threads concerned by means .ofa movable pasting dev ce. Y

performed by stretching the ends of the old] v and new warp over cross-beams in a. joining the loom separated into two layers by means of lease-rods, the said layers crossing one another. 51 represents the reeds and harnesses, which are removed from the loom together with the old warp. These members 51 are brought into the joining machine together with the old warp without being separated from the latter, and after being inserted in the said machine the old warp threads are stretched between the roller 50 and another roller 52. The cross beams 53, are then inserted in place of the said lease rods between the warp threads, which are crossed at one point, so that the end of the old warp, stretched between the rollers 50 and 52, forms two layers of threads, crossing one another between the intermediate beams 53, and each comprising every second of the said warp threads.

The roller 54 on which the new warp is arranged, is thereafter inserted in the joining machine, i. e., in the end of the same opposite to that end, where the roller 50 with the old warp is inserted, and the threads of the new warp are'stretched between the roller 54 and another roller 55. When the threads of the new warp are delivered from the warping machine, they are divided in two groups, alternate threads in a group, by leasing members, which after the new warp have been stretched in the joining machine, may be replaced by cross-beams 56, so that the threads will form two separate layers, separated by the cross-beams 56 and crossing one another between the intermediate pair of beams 56 each comprising every second thread of the new warp.

The cross-beams 53 are laid directly over the cross-beams 56 and brought close together, as shown in Fig. 1, so that the uppermost layer of the new warp and the lowermost layer of the old warp lie close together after the insertion of the cross-beams 53 and 56.

The threads of the new warp are shown in dotted lines and the threads of the old warp in full lines in Figs. 1 and 2.

The threads of the two warps shall now be connected in known manner by pasting the threads together two by two. This is ef-' fected by pasting the threads 57 of the new warp to the threads 58 of the old warp at the point 59 and by pasting the threads 61 of the new warp and the threads 62 of the old warp together at thepoint 60.-

After effecting the connection of the warps the thread parts shown with thin lines in Fig. 2 are cut away and the new warp threads are drawn through the reeds 51 by turning the beam 50, whereafter they may be withdrawn from the joining machine and inserted in the loom concerned.

In order to prevent any uneven distribution of the warp threads, along these rollers 50 and 54, from beingtransferred tothe portion of the warps located between the crossbeams 53 and 56 and on the tightening rollers 52 and 55, this portion of the warps, after the bitter have been stretched in the joining machine, before or after the insertionof the cross-beams, is combed by combs of a length being suitably made equal to the width of the warp. By means of these combs which aremade of iron or the like the warp is combed in the direction from the rollers 50 and 54, respectively, towards the tight: ening rollers 52 and 55 respectively, until a uniform distribution of the warp threads over the entire width of the warp has been 7 attained, whereafter the comb 81 remains stationary with its teeth in the warp, as close to the tightening rollers as practicable, thereby securing the preservation of the uniform distribution of'the warp threads. If the warp threads are combed immediately after they have been stretched on the crossbars concerned in the manner shown in Figs. 1 and 2, the result is attained that the cor rect location of the warps'on the said bars may be attained considerably quicker than heretofore.

In Figs. 3 and 4', 63 is a disc'-'the so-called heart-by means ofw'hich the selection of the threads of the two warps is effected, in the manner described" in British Patent No. 24,749 of 1912. The said disc 63 may easily be shifted in the direction across the warp along a shaft 70 which is mounted transversely to the warps and has such a shape that the heart cannot revolve about the shaft: The latter and, thereby, also the heart are moved, in a direction parallel to the warp threads by means of cranks or the like '(see British Patent No. 24.749 1912), back and forth between that pairv of cross-beams 53-56 between which the threads 57 and 61 respectively and 58 and 62 cross one another.

The heart 63 is in the manner describedjin the British patent specification No. 24,749 of 1912, or in any other suitablemanner, pressed against the still untreated portionof the warps (in Fig. 4) upward so that the reciprocating motion, in combinationwith the special manner in which the thread's are stretched will have the effect that for each individual stroke of the heart two threads will be separated in known manner fromthe remaining still untreated portion of the warp, namely one thread alternately 58 and 62 from the old warp andone thread alter nately "57 and 61 from the new one. The place of contact 59 and 60 between such two corresponding threads will then be located alternately at the right hand and the left hand cr0ss-beams-53, 56, (right and left in respect to 3), and the pasting of the threads must therefore also be effected alternately at one and the other side of the apparatus, that is'to say pasting and drying devices must be provided on both sides of the apparatus. a i

64 indicates these pasting and drying devices, and 65 indicates devicesfor supplying the drying air.

Each pasting device 64 consists essentially of a glue container 4 with one or more holes 67 to squirt the glue, a gripping device 90 and a heating device 5 (for instance a heating drum).

The position of the pasting device relatively to the warp threads is such that the pair of threads which is nearest to the rear side of theheart (that is the side of the heart which is restin against the not yet treated warp threadsi pasted together by the next following motion of the heart, comes directly over the glue holes 67. During the motion of the heart towards that pair of cross-beams 53,

56 where the gluing of the two threads c'on-v cerned is to be performed, a drop of glue will be pressed out in a manner more fully v described hereinafter, through the holes 67 on the point 59 or 60 of the threads. During the continued motionof the heart towards the cross-bars, thislpair of threads will now be seized by an arm '66, which is'pivoted to the heart, and willwbe transferred by this arm to the gripping device 90 just when a roller 68 journaled on a projectionv69on the arm 66 in known manner strikes .the'crossbeams and, thereby, turns the arm '66. a

The gripping device remains as described more fully below at rest temporarily, but a spring which will be further mentioned in the following and which is tightened by the heart during the above mentioned motions of the latter will causethe gripping device to be turned a certain adjustable distance forward, immediately after the heart has commenced its return motion, and the pasted pair of threads is now transferred to the heating drum 5 by the said gripping,device. Here the threadsl'e'ma-in until the heart; during a subsequent forward motion, nearlysimultaneously with the expulsion of the glue for the next pairof threads to'be pasted on the same side of the machine gives accessv for-the compressed air lthroughthe air supply device 65, which airin combination with the action of the heat now causes the glue to be solidified almost instantaneously.

and which is to be drying apparatus. a

On abracket 1 on a common bottom' frame 2 there is fastened an oblong-frame When subsequently the heart 63 moves back again, the gripping device is released once more, the pair of threadsconsidered are moved further on, away, from the drying ,device 5 where-now'the next following pair will occupy the vacant position and so forth.

Allthese various operations, however, are performed in very quicksuc cession and alternately ,at the right hand and left handside of the apparatus.

' Thecompressedairmay; be suppliedin any suitable manner. In Fig. 3 there is indicated an arrangement serving thispur-- pose. It consists of a mouth piece 71,.which is disposed centrally over the heating member 5, and has one or more downwardly directed holes, and is inserted, by means of a knee-tube 65, in;a holder 72 which is adapted to slide in aslot 74E passing longitudinally of compressed-air arranged in any suitable manner outside the'joining machine. The holder 72.,is fitted with a projecting wing 73 which projects over the path of the heart 63, Fig. 3, and is cut off obliquely in such a vmanner that the heart 63, while'moving to-- wards the cross-beams concerned and occasionally striking the slanting face. of the wing, automatically takes theentire-comj pressed air device along towards .the still .untreated portion of the warp The action of. the heart on the pasting dedevices, the depression of these members,

causing the performance ofythe above explicitly describedfoperations and the occavices is effected by means of members similar to the ones described above in case'of' sional motion of the pasting devices across,

the warp in accordance with the motion of the heart in the same direction. This last mentioned Inotionfmay for instance be ef fected by means of pawls engaging the racks 75, Fig. 3, in the bottonimost cross-beams 5 6.

FigsQ5 to 8 show the drum to rotatefstepf'by step, as :men-

tioned in the following. The object of this a complete pasting and o. 1a w on the shaft and which, bzyffnieans o'f a rack 9' pivotally and v resiliently dis'posed ,on a

longitudinally movable drivingrod 8,'causes;

rotation is to keep the surface of the drums clean, and, for this purpose, there is provided in a suitable manner a scraper device 12 (Fig. 6) which scrapes the solidified glue from the drum during the rotation of the latter.

The drum is heated by an electric heating body which is placed therein and receives its current. by way of contact rings 10 and brushes 11.

In the glue container 1 there is provided a small pressure pump, which presses glue out through small holes 67 in the top face of the glue container. The pump is moved by an arm 13 with adjustable stop 14 (Figs. 5 and 6) This arm 13 engages a slot 40 in the driving rod 8 and is driven by this rod.

The gripping device consists of a ratchet wheel 15 loosely journaled on the shaft 6 coaxially to the heating drum inside of the ratchet wheel 7 and being turned occasionally by means of an adjustable bawl 16 resiliently attached to the driving rod 8.

It appears from the above that the common driving rod 8 is what causes the various functions of the apparatus to be performed, inasmuch as it drives the pump, turns the heating drum and the gripping device, these motions being partly adjustable independently of one another.

The driving rod 8 performs a reciprocating- (horizontal) motion during which it is guided in guides 17 and 18 on the frame 3 or on the common bottom frame 2. j

The motion of the driving rod is effected by the heart 63, Figs. 3 and 4, in the following manner:

A two-armed fiat lever 19, 20 is jo-urnaled about a pin 21 attached. to the bottom frame 2 and projects with its one long suitably shaped arm 19 into the space swept by the heart while the shorter arm 20 engages, by means of a pin, a slot 11 in an arm 22 on the driving rod 8. V

A helical spring 23 fastened in the bottom frame presses against the bent wing 20 and holds the driving rod 8 and, thereby, also the lever 19 in the initial position, that is the position shown in Fig. 6, the end of the long arm 19 of the leverresting then against a 'sto 3' 2a in the bottom frame 2. lVhile during its motion towards the pasting device the heart strikes the arm 19. it turns the latter inward and, consequently, displaces the driving rod 8 longitudinally as it ap pears plainly from Fig. 6

The apparatus operates in the following manner:

While during its motion towards the cross-bars the heart strikes the lever 19, the latter is depressed, and the driving rod 8 is then moved as mentioned above, the spring 23 being stressed. During this motion of the driving rod 8 the latter turns first the arm 13 whereby the glue compressing pump inserted in-the glue container 1 is actuated by an'arm 25 which is provided in the vessel at and is connected to the arm 13. The said pump thereby presses a drop of glue up through the holes 67, Figs 3, 4c, 5 and 6, which drop then adheres to the two foremost warp threads. tinued motion'of the heart, the displacement of the driving rod 8 is continued simultaneously with the roller 68 (Fig. 4) turning the arm. 66 on the heart. The two threads thus moistened .with glue are then, by means of the arm 66, moved towards the gripping wheel 15, in such a manner that they are caused to be placed in the wheel 15 in the position indicated by Z in Fig. 5. The threads are secured in this position by a spring 42, Figs. 3 and 5, fastened in suitable manner to the air-blowing device 71, so that this spring, when the arms 66 swing backward during the immediately following re turn motion of the heart, will prevent the threads from slidingout of the wheel 15.

When now the heart goes back, the lever 19, 20 is released as mentioned above and, consequently, the driving rod 8, and the latter slips back while actuated by the spring 23. The rack 9 journalled on the rod 8 thereby turns the heating body 5 a suitable short distance while the pawl 16 simultaneously advances the wheel 15, for instance four teeth forward. Hereby the gripping wheel 15 shifts the two glued threads from the position Z, Fig. 5, into a position in which the threads will be lying on the heating member 5, their mutual contact surface resting on the latter. The two threads previously lying at this place were immediately before exposed to an air jet from the nozzle 65, F ig. 3. and their glue was thoroughly dried by the action of the air jet and the heating, the heart having opened for the said air jet in the above mentioned manner at the same time as it shifted the driving rod 8. 12 is a spring which is secured to a suitable projection 80 on the air supplying device, and projects just over the gripping device 15 thereby securing the threads in proper position on the same.

During the next displacement of the driving rod 8, by action of the spring 23 that is at the next rotary motion of the gear wheel 15,'the two threads are advanced further away from the heating drum 5 or will at least receive an impulse in that direction. It may happen, however, that the teeth of the gear wheel will not slip the threads and, consequently. takes the latter along in downward direction which might cause the threads to be severed.

In order to avoid this, there is provided, in close proximity of the wheel 15 a'special thread detaching device, as shown in Fig. 8.

During the conion To a. projecting arm 35 there is attached, adjustably, a curved arm 36- ending 'at the top in afork-in which there is inserted,'ro-

device. If the latter should try to take the threads along in a downward direction-me pressure of the wing 39 against the under.- side of 'the said threads will cause the threads to be removed from the rear wheel 15.

When the heart has moved, in known manner, so far indirection across the warps it strikes, besides the lever 19, also the head 34 on a lever arm 32. The displacement of the entire pasting device across the warp threads is thereby efiected by means of a pawl 26,-which is sunk into one side of the bottom frame 2 and engages a rack 75. The said pawl 26 is journalled on an arm 28,

which is pivoted about a pin 27 and is fitted with a slot 29, the latter being engaged by an arm 30, which extends through a passage in the lower part ofthe frame 2 (Fig. 5) and is secured to the shaft 31 to which the leverarm 32 is fastened. A'spring which is secured to the lower end of the shaft 31 presses the lever 32 against a fixed stop 33 on thebottomframe 2.

During the motion toward the cross-bars when the heart strikes the 'head 34 on the lever 32, the 'l atter'will be pressed inward towards the pasting device, whereby the shaft 31 is turned, so that a spring willv be stressed, while the pawl 26 will press against the rack 35, thereby advancing the entlre pasting device forward in direction across the warps.

By thismovementthe head 34 on the lever 32 moves away from the heart, thereby releasing the lever arm 32 and causing the shaft 31 to be turned backward by action of the spring. During said return motion of the shaft 31 the pawl 26 will slide on top of a number of the teeth on the rack until the pawl returns to its initial position, shown in Fig. 5 in relation to the frame 2.

tioned feature has never been attainable in spite of numerousattempts in that direction.

he movement of the heart will therefore automatically causethe pasting apparatus "I claim". as my invention: g 71.111 a warp uniting :machine having means for supporting two warps stretched mutually crosswise in the machine; a' disc adapted to reciprocate parallel to the warps; a pasting device comprising means for supplyingan adhesive tothe threadof the'warps; a'heating-member; and an air supplying device for blowing air upont-he adhesive 'onthe threads ing member. v p

2. In awarp uniting machine comprising a disc'adapted to reciprocate parallelto the resting on the heatwarps and select the threads in pairs onethread from each warp; a' pasting device adapted to supply an adhesive to the threads; a heating member comprising a cylinder; and an air-supplying device for blowing air upon the adhesive on the thread. v

resting on the cylinder to instantly dry the adhesive.

3. In a warp uniting machine; a frame a lever pivotally mounted on said frame; a

rod reciprocated by said lever, and a heating device, said rod in one, direct-ion operating a membersupplying a paste dropwise to the warp threads and in the other direction advancing the thread toward the heating. de vice. i

4. a warp uniting machine; a frame provlded with a pivotally mounted lever and a slidably mounted rod a disc mounted in said frame and adapted to actuate said lever; a pivotally mounted heating member;

and a gripping device actuated by said rod and directly connected to the shaft of the pivotally mounted heating'member.

'5. In a warp uniting machine; a frame;

a member for supplying paste to-the warpthreads located in said frame; a heating member pivotally mounted in said frame; a rod slidably mounted on the frame and engaging said paste the shaft for said heating member;.a lever pivotally mounted on the frame and adapted supplying device and to actuate the rod; a second lever mounted a on the frame and adapted to actuate means for advancing the combined pasting and dryingdevices and a'gripping device connected to and actuated by said rod,'said-rod,

upon movement in one direction actuating a pasting device andupon movement in; the

other direction actuating the" gripping and the heating devices. I

6. In a warp uniting machine comprising a pasting device; a reciprocating disc adapt- 4 ed to select pairs of threads and carry them across the adapted to carry the thread over a heating supported by the pasting device and a lever engaging said rod and pivoted. on the pastpasting device;"a grippin Wheel ing device and adapted when actuated by the disc to cause the rotation of the gripping Wheel, for removing the threads from the heating member.

7. In a. Warp uniting machine comprising means for supporting two mutually crossed warps; a disc reciprocating parallel to the warps and adapted to select the threads in pairs; a pasting device for supplying ad- 10 hesive to the threads; a heating member comprising a cylinder and an air supplying device actuated by said disc and forming additional means for drying the adhesive.

In Witness whereof I have hereunto signed my name in the presence of two subscribing Witnesses.

FRANTZ ADOLF MARTENS. Witnesses:

JULIUS LEHMANN, CARL HEMMINGREN. 

